IYPT 2002, Задачи на турнира — Задача 15. Pulsating air bubble

15th IYPT (2002)

Заглавие в източника

Source: iypt.org.ua, before Jan. 8, 2002
Selected at the Preparatory Seminar in Odessa on Oct. 11—14, 2001
Exemplary solutions for 2002 →

Условие

Trap an air bubble of radius 1—2 cm under an inverted watch glass beneath a water surface. Introduce alcohol into the bubble through a thin tube, controlling and adjusting the rate of flow until the bubble pulsates rhythmically. Study the phenomenon and explain your observations.

Решение

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Оригинал в Архива: 2002.txt